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Secret History


Scientists discover 4 new Nazca geoglyphs using AI deep learning

New geoglyphs
© Yamagata University / IBM Japan
Scientists from Japan used AI deep learning to discover new geoglyphs in the Arid Peruvian coastal plain, in the northern part of Peru's Nazca Pampa.

The research has been ongoing since 2004 by a team from Yamagata University, led by Professor Makato Sakai. Yamagata University has been conducting geoglyph distribution surveys using satellite imagery, aerial photography, airborne scanning LiDAR, and drone photography to investigate the vast area of the Nazca Pampa covering more than 390 km2.

The Nazca Lines are thought to have been made over centuries, starting around 100 BC by the Nazca people of modern-day Peru. They were first studied in detail in the 1940s, and by the time they were designated a UNESCO World Heritage Site in 1994, around 30 were identified. They're remarkably well-preserved considering their age, helped by the desert's dry climate and winds that sweep away the sand but are being obscured by floods and human activity.

Archaeologists discovered 142 new designs in the desert over the course of ten years by manually identifying them using aerial photography and on-site surveying. Then, in collaboration with IBM Japan researchers, they used machine learning to search the data for designs that had been missed in previous studies.


15th century manuscript discovered that records 500 year-old standup comedy routine

manuscript 15th century comedy
© University of Cambridge via SWNS
While this old parchment page may look like one out of a wizard’s spellbook, it’s actually what scholars believe to be the world’s oldest recorded stand-up comedy routine.
In the year 1,480, a household cleric and tutor to a noble family named Richard Heege went to a feast where there was a minstrel performing a three-part act. Heege recorded as much as he could remember, opening with "By me, Richard Heege, because I was at that feast and did not have a drink."

That is illustrative of where the story goes from there — a performance relevant to the humor enjoyed in Britain today, and one which colors the high Middle Ages as a time of artistic liberty, social mobility, and vigorous nightlife.

Heege's booklet contains three texts gleaned from the jester's material: a Hunting of the Hare story featuring a killer rabbit, a mock sermon in prose in which three kings eat so much that 24 bulls explode out of their stomachs and begin sword fighting, and an alliteration nonsense verse entitled The Battle of Brackonwet.


Civilization-tracing project authenticates China's 5,000-year history

© Hang Dachuan/Global Times
The study of the origin, formation, development, as well as the characteristics, mechanisms, and traits of Chinese civilization attracts great attention worldwide.

For a long time, some people held a skeptical attitude toward China's 5,000 years of civilization due to a lack of systematic data. Since its launch in 2001, the project to trace the origins of Chinese civilization has made significant achievements in restoring historical truth, countering skepticism, and presenting new evidence from archaeological excavations and scientific research.

The project has demonstrated how China developed its own unique path toward civilization through its unyielding determination and willpower. Studies have shown that around 5,800 years ago, the development in the complexity of prehistoric societies in the middle and lower reaches of the Yellow River and Yangtze River and the west of Liaohe River basin accelerated, showing signs of the origin of civilization. For example, the Hongshan Culture in the west of Liaohe River basin formed a ceremonial and sacrificial center with stone altars, temples, and tombs, showing clear social differentiation and a theocracy-dominated regional civilization.

Starting 5,300 years ago, various regions in ancient China successively formed early states and entered the first stages of civilization. For example, the Liangzhu culture was characterized by mature rice farming, large-scale construction projects, exquisite pottery, jade wares, ivory scepters and textiles. The vast area had common spiritual beliefs, economic forms and a unified society, which formed the centralized social structure and the initial form of a "monarchy state."

Blue Planet

Queen Hetepheres' silver bracelets shed light on trade networks in Ancient Egypt

Hetepheres egypt
© Sowada et al., doi: 10.1016/j.jasrep.2023.103978.
Two silver bracelets of queen Hetepheres.
Silver artifacts first appeared in Egypt during the 4th millennium BCE but the original source then, and in the 3rd millennium, is unknown.

Ancient Egyptian texts don't mention any local sources, but an older view, derived from the presence of gold in silver objects, plus the high silver content of Egyptian gold and electrum, holds that silver was derived from local sources.

An alternative view is that silver was imported to Egypt, possibly via Byblos on the Lebanese coast, owing to many silver objects found in Byblos tombs from the late fourth millennium.

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Arrow Down

World War II 'horror bunker' run by infamous Unit 731 discovered in China

A bunker discovered near the city of Anda in northeast China is believed to be the largest test site of Imperial Japan's infamous Unit 731, which conducted horrifying human experiments during the 1940s.
Japanese Unit 731
© From History/Universal Images Group via Getty Images
Japanese Unit 731 staff carrying a body from one of the unit's facilities.
Archaeologists in China have uncovered a secret underground bunker used by Japanese scientists to conduct horrific experiments on human subjects during World War II.

The "horror bunker," discovered near the city of Anda in Heilongjiang province, northeast China, was used by the Japanese army's infamous Unit 731 during Japan's occupation of China from 1931 to 1945.

Built by the Japanese in 1941 and running until Japan's surrender at the end of World War II, the lab was Unit 731's largest research site, but its exact location was lost until now. Unit 731 began in 1931 as a Japanese-run public health unit, but it quickly expanded its research to include grotesque biological and chemical warfare experiments using Chinese, Korean, Russian and American captives as test subjects.


2,700-year-old petroglyphs depicting people, ships and animals discovered in Sweden

About 40 ancient rock carvings have been found on a former rocky island in Sweden.
Sweden petroglyphs
© Foundation for Documentation of Bohuslän’s Rock Carvings
The newly found petroglyphs from Sweden include depictions of humans.
On a steep rock face in western Sweden, researchers uncovered a fascinating find: around 40 petroglyphs — depicting ships, people and animal figures — dating back around 2,700 years.

The petroglyphs were carved on a granite rock face that was once part of an island, meaning people would have had to make the carvings while standing on a boat, or from a platform constructed on ice, said Martin Östholm, a project manager with the Foundation for Documentation of Bohuslän's Rock Carvings who is one of the archaeologists who discovered the petroglyphs, told Live Science.
Sweden petroglyphs 1
© Foundation for Documentation of Bohuslän’s Rock Carvings
The petroglyphs are high up on a granite rock face that cannot be climbed, so researchers built a platform to study them.
Bohuslän is already known for its rock carvings, including Bronze Age art made at Tanum, a United Nations Educational, Scientific and Cultural Organization (UNESCO) site. The team was looking for new petroglyphs in the area when they came across the moss-covered rock face. They noticed some lines on it that appeared to be human made, so they removed the moss, revealing the petroglyphs underneath. The rock face is too steep to stand on, Östholm said, so the team had to stand on a platform to do their archaeological work.

Better Earth

Lost since 1362: Researchers discover the church of a medieval trading place sunk by legendary tidal surge

© Dirk Bienen-Scholt
A lightweight survey vehicle provides large-scale magnetic mapping of cultural traces hidden beneath the present-day tidal flat surface.
The medieval trading center of Rungholt, which is today located in the UNESCO Wadden Sea World Heritage Site and currently the focus of interdisciplinary research, drowned in a storm surge in 1362.

Using a combination of geoscientific and archaeological methods, researchers from Kiel University (CAU), Johannes Gutenberg University Mainz (JGU), the Center for Baltic and Scandinavian Archaeology (ZBSA), and the State Archaeology Department Schleswig-Holstein (ALSH), both in Schleswig, have now succeeded in locating the site of the Rungholt church. Thus, they can now finally clarify a much-discussed research question that has been going on for over 100 years.

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Better Earth

Arctic was warmer, ice-free in summertime 10,000 years ago, Aarhus University study finds

Sediment samples show Arctic was warmer 10,000 years ago and was ice free in the summertime. Moreover, the researchers say "it's uncertain" if Arctic sea ice will disappear in the summertime before 2063.
The Aarhus University conducted a study that confirms sea ice disappeared from the Arctic during the summer months during the early Holocene - 10,000 years ago.

Researchers from Aarhus University, in collaboration with Stockholm University and the United States Geological Survey, analyzed samples from the previously inaccessible region north of Greenland. The sediment samples were collected from the seabed in the Lincoln Sea. They showed that the sea ice in this region melted away during summer months around 10,000 years ago.

The research team concluded that summer sea ice melted at a time when temperatures were higher than today.

Comment: That may be in part due to Earth's poles being at a different location: Of Flash Frozen Mammoths and Cosmic Catastrophes

Star of David

Israel's state-building project is unravelling - from within

A demonstrator with a sign against Israeli PM Benjamin Netanyahu
Tel Aviv • 1 April, 2023
Israel's undoing will not be an attack from Arab states or international sanctions. Rather, its leaders have created a monster they can no longer tame...

As Israel celebrates its 75th anniversary, the state-building project it cemented into place in 1948 by expelling 750,000 Palestinians from their homeland is showing the first signs of unravelling.

The surprise is that Israel's woes spring not, as generations of its leaders feared, from outside forces - a combined attack from Arab states or pressure from the international community - but from Israel's own internal contradictions.

Israeli leaders created the very problems they all too obviously lack the tools to now solve. Prime Minister Benjamin Netanyahu's bombardment of Gaza in recent days, killing dozens of Palestinians, should be understood in that light. It is one more indication of Israel's internal crisis.

Once again, the Palestinians are being used in a frantic bid to shore up an increasingly fragile "Jewish" unity.


Composition of Roman perfume identified for first time, and it smelled like patchouli

urn roman
© University of Córdoba
A little bottle of the solidified scent was found in a glass urn inside a Roman tomb.
In Roman Spain, some 2,000 years ago, people may have been perfuming themselves with the musky scent of patchouli, new research hints. The study marks the first time that the composition of a Roman perfume has been identified, offering us a rare whiff of a bygone empire.

The perfume, which has solidified after two millennia inside a carved quartz bottle, was discovered in a funerary urn found in a mausoleum in Seville, Spain. Unearthed in 2019, during an excavation in modern-day Carmona, the mystery ointment has now been chemically described, revealing the inclusion of patchouli, an essential oil common in modern perfumery but never before known in use in ancient Rome.

As well as the essence of patchouli, obtained from Pogostemon cablin, a plant of Indian origin, the cologne was found to have a base of vegetable oil - possibly olive oil - although the researchers cannot be certain about this.

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